Provide default syscall filter in /etc/drakrun

[icedevml]

Provide default syscall filter in /etc/drakrun

[icedevml]

For the latest DRAKVUF version, drakrun postprocessing is not able to parse syscalls logs due to a bug.

External PR: tklengyel/drakvuf#861

[icedevml]

🤔 actually after testing it turns out that the syscall filter is not required, JSON parsing errors were slowing down the process a lot, but now these are fixed and it seems to run fine

[BonusPlay]

Does that mean we can close this issue, or we still want a default filter?

[icedevml]

@BonusPlay It's not critical anymore but we do want the feature. I bet there should be something like /etc/drakrun/syscalls.txt to configure the syscalls filter and also some switch in config.ini whether to enable filtering or not.